X0303 4 2010-03-08 0 0000927003 ADVANCED ENERGY INDUSTRIES INC AEIS 0001228910 SCHATZ DOUGLAS S & SCHATZ JILL E FAMILY TRUST PO BOX 481 FORT COLLINS CO 80522 0 0 1 0 0001007705 SCHATZ DOUGLAS S P.O. BOX 481 FORT COLLINS CO 80522 1 0 0 0 0001328181 Schatz Jill E P.O. BOX 481 FORT COLLINS CO 80522 0 0 1 0 Common Stock 2010-03-08 4 S 0 900 14.58 D 6035183 D Common Stock 2010-03-08 4 S 0 1000 14.5801 D 6034183 D Common Stock 2010-03-08 4 S 0 100 14.5825 D 6034083 D Common Stock 2010-03-08 4 S 0 100 14.61 D 6033983 D Common Stock 2010-03-08 4 S 0 500 14.6133 D 6033483 D Common Stock 2010-03-08 4 S 0 500 14.62 D 6032983 D Common Stock 2010-03-08 4 S 0 1200 14.6201 D 6031783 D Common Stock 2010-03-08 4 S 0 1000 14.6233 D 6030783 D Common Stock 2010-03-08 4 S 0 1864 14.63 D 6028919 D Common Stock 2010-03-08 4 S 0 700 14.6301 D 6028219 D Common Stock 2010-03-08 4 S 0 100 14.6302 D 6028119 D Common Stock 2010-03-08 4 S 0 500 14.6317 D 6027619 D Common Stock 2010-03-08 4 S 0 36 14.633 D 6027583 D Common Stock 2010-03-08 4 S 0 1000 14.6333 D 6026583 D Common Stock 2010-03-08 4 S 0 5800 14.64 D 6020783 D Common Stock 2010-03-08 4 S 0 1700 14.64 D 6019083 D Common Stock 2010-03-08 4 S 0 200 14.6401 D 6018883 D Common Stock 2010-03-08 4 S 0 1200 14.6401 D 6017683 D Common Stock 2010-03-08 4 S 0 100 14.6402 D 6017583 D Common Stock 2010-03-08 4 S 0 200 14.6405 D 6017383 D Common Stock 2010-03-08 4 S 0 100 14.6407 D 6117283 D Common Stock 2010-03-08 4 S 0 600 14.6413 D 6016683 D Common Stock 2010-03-08 4 S 0 700 14.6417 D 6015983 D Common Stock 2010-03-08 4 S 0 200 14.6425 D 6015783 D Common Stock 2010-03-08 4 S 0 400 14.643 D 6015383 D Common Stock 2010-03-08 4 S 0 200 14.6433 D 6015183 D Common Stock 2010-03-08 4 S 0 600 14.645 D 6014583 D Common Stock 2010-03-08 4 S 0 100 14.646 D 6014483 D Common Stock 2010-03-08 4 S 0 1200 14.65 D 6013283 D Common Stock 2010-03-08 4 S 0 904 14.65 D 6012379 D These shares are owned directly by Douglas S. Schatz & Jill E. Schatz Family Trust, a ten percent owner of the issuer, and indirectly by Douglas S. Schatz and Jill E. Schatz, co-trustees of the trust. Includes 26,350 shares of restricted stock units held directly by Douglas S. Schatz, who is a director of the Issuer. The Sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan. /S/ Thomas O. McGimpsey (Attorney-in-Fact) 2010-03-10